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Turn Your Eyes To The Skies For The Latest Explorers

08/19/2016 03:25 pm ET | Updated Aug 19, 2016
az-distribuzione

 

6 ways National Science Foundation-supported research is improving unmanned aerial systems for scientific and societal benefit

From strengthening wildlife conservation efforts to improving disaster response, researchers are finding new ways to use small, unmanned aerial vehicles (UAVs) — also known as drones or unmanned aerial systems (UAS) — to gather data, improve communication, and explore environments where humans and larger aircraft dare not go.

These advances are due, in part, to improvements in UAV technology, as well asclearer ground rules that govern the many uses of unmanned aircraft.

Increased federal funding, too, including a recent $35 million commitment from the National Science Foundation (NSF), are helping to advance the basic research required to design UAVs that can save lives, improve safety, and enable more effective science.

“Designing and developing highly-capable UAS platforms requires basic research in the theoretical principles of UAS, including sensing, perception, control and communications,” says Lynne Parker, NSF director of the division of information and intelligent systems. “Once these agile and robust UAS systems are developed, they can be extended to operate in a variety of challenging domains, such as serving as vital tools for scientific exploration.”

Since 2010, NSF has funded dozens of UAV research projects related to computing, engineering, earth science and biology. NSF has supported UAV entrepreneurs through its Small Business Innovation Research program too.

The examples below demonstrate the potential for researchers to advance their scientific knowledge and provide benefits to society through the use of unmanned aircraft.

1. Wildlife conservation

With their ability to travel at altitudes and in environments where manned aircraft cannot, UAVs can study species in difficult-to-reach locations, and help researchers address a number of important questions about ecosystems.

 

Michael Shafer, an assistant professor of mechanical engineering at Northern Arizona University, is working on an NSF-funded project to better track wildlife — particularly small animals such as bats and birds — in non-intrusive manner. By developing low-cost, UAV-mounted radio telemetry systems that can receive radio signals from tagged wildlife, and by making the pre-engineered systems available to wildlife researchers via open source publishing, he hopes to significantly reduce the barriers to tracking animals in the wild.

Shafer’s lightweight modules leverage the flight capabilities of UAVs to better detect signals from wildlife transmitters. This involves developing signal-processing algorithms to assist in detecting and localizing very high-frequency radio tags, and assembling a radio system capable of providing the required sensitivity. It also involves designing a system compact enough to fit on a UAV, along with special vehicles for field researchers and the radio-sensing modules they carry.

In addition to the technical development effort, Shafer and his team plan to work with the Upward Bound program at Northern Arizona University to guide first-generation, low-income high school students from the Four Corners region — Arizona, Utah, Colorado and New Mexico — toward successful college careers.

2. Increasing the accuracy of weather forecasts

UAVs are particularly well-suited for gathering data in the lower atmosphere (1,000-4,000 meters) where many weather phenomena begin and where manned aircraft are too dangerous or expensive to fly. Radar cannot always track conditions at this level and weather balloons have too short of a duration at these altitudes.

 

Through the $6 million, four-year Collaboration Leading Operational UAS Development for Meteorology and Atmospheric Physics (CLOUD-MAP) project, Oklahoma State University, the University of Oklahoma, the University of Kentucky, and the University of Nebraska are working together to develop UAV capabilities so meteorologists and atmospheric scientists can use unmanned aircraft as an everyday research tool.

The CLOUD-MAP project recently completed its first flight campaign, which resulted in nearly 250 unmanned flights of 12 separate UAV platforms over a three-day period — one of the largest scientific unmanned aircraft operations ever. The effort, which brought together more than 65 researchers and students, collected important meteorological, climatological and operational data that will increase the accuracy of weather forecasts, ultimately saving lives and property.

3. Enhancing communications in a disaster

NSF CAREER awardee Yan Wan from the University of North Texas is developing aerial networking systems that use directional antennas on UAVs to deliver on-demand communication to first responders in emergency response situations.

Typical wireless communications have a range of only 100 meters, or just over the length of a football field. Wan and her colleagues, however, developed technology that extends the Wi-Fi reach of drones to 8 kilometers, or about 5 miles.

Wan and her team have worked with emergency agencies across Texas to test their system’s ability to quickly establish emergency communications in disaster drills and exercises. In May 2015, working with researchers from Worcester Polytechnic Institute and the Austin Fire Department, she demonstrated how UAVs can establish aerial communication in a search-and-rescue operation, providing emergency responders with the aerial views they need to direct robots to find victims quickly and to transmit video streams of survivors to control centers.

For this, and other activities, she and her colleagues won the Dallas-Forth Worth Metroplex’s 2015 Tech Titan Award.

4. UAVs in hurricane and nuclear disasters

Robin Murphy, the director of the Center for Robot-Assisted Search and Rescue (CRASAR) at Texas A&M University, has deployed UAVs to some of the worst natural and man-made disasters in recent memory.

In the wake of Hurricane Katrina, Murphy directed UAVs to explore buildings along the Gulf Coast — the first time an unmanned aircraft was used for emergency structural inspections. During the nuclear meltdown at the Fukushima Daiichi plant in Japan, she was part of a team that flew UAVs to determine radiation levels and inspect damage at the reactors. And in the days following the 2016 floods in Texas, Murphy led a team that deployed UAVs to inspect the storm-ravaged area.

Murphy determined that one 20-minute drone flight generates roughly 800 photographs, each of which takes a minute to inspect. This led her to conclude that data analysis tools, deployed alongside unmanned aircraft, are necessary to make UAV technology useful in time-sensitive situations.

Working with collaborators and students, Murphy has developed software that uses computer vision and machine learning to improve UAV flight paths, as well as anomaly detection techniques to better locate survivors with UAVs.

Combining the capabilities of UAVs with tools that allow them to work in a targeted way is the secret to developing effective search-and-rescue UAVs, Murphy believes.

5. Sea ice mapping

Researchers on the trip were exploring the vulnerability of Antarctic ice to melting due to the presence of relatively warm ocean water below it. Melting ice would drive glaciers into the sea faster and raise sea levels worldwide. This data will inform future integrated observation programs.

In separate research, scientists from the University of Kansas-led Center for Remote Sensing of Ice Sheets (CReSIS) are developing new technologies and computer models to measure and predict the response of sea level change to the mass balance of ice sheets in Greenland and Antarctica.

In remote and dangerous locations such as Antarctica, UAVs can help to gather critical information without endangering human pilots, which is why the NSF-managed U.S. Antarctic Program is developing a policy on the safe and environmentally sound use of UAVs in Antarctic research.


6. Safer, cheaper infrastructure monitoring

As U.S. infrastructure ages, its operators need more efficient and affordable techniques to monitor and assess bridges, railroads, power lines, dams and other large systems. UAVs enable innovative approaches for monitoring the health and stability of structures from above and below.

 

Ivan Bartoli of Drexel University leads a project that focuses not just on UAVs, but on what those unmanned aircraft look at. Using novel manufacturing processes, his team designs special surface coatings — like paint — that enable UAVs to rapidly collect multi-spectral imaging data. Advanced algorithms then analyze that data to find structural deformations, allowing engineers to quickly identify damage to critical components of monitored structures.

Scientists and engineers are already moving many of these technologies out of the lab and into the marketplace. Hung La of the University of Nevada, Reno is building on NSF-funded research to create low-cost UAVs and robotic systems that can efficiently inspect steel and concrete bridges.

La is part of an NSF Innovation Corps Team that has completed more than 160 customer interviews, helping him focus on customer uses as the research team finalizes their designs and thinks about the long-term commercialization of the technology. Their product has been tested and deployed in the field, and La is working with his university to patent the technology.

These and other new ways of thinking about infrastructure are leading to a safer, more stable future.

——————

Image credits/captions:

A low-level flight test by Michael Shafer and his team at Northern Arizona University. Credit: Michael Shafer

Oklahoma State University research engineer Taylor Mitchell launches a CO2-sensing UAV while the University of Nebraska student team tests in the background. Credit: CLOUD-MAP

At the Smart America Expo, Yan Wan from the University of North Texas exhibited unmanned aerial vehicles (UAVs) she developed that are capable of providing wireless communications to storm-ravaged areas where telephone access might be out. Credit: NSF

CRASAR small UAS Assisted Fort Bend OEM with Determining Flooding (Apr 20, 24, 2016) Credit: Center for Robot-Assisted Search and Rescue (Texas A&M Engineering Experiment Station)

NSF-funded KU researchers successfully test unmanned aircraft system in Antarctica. Credit: Produced by Dena Headlee, NSF; Video courtesy of University of Kansas/NSF

Hung La of the University of Nevada, Reno is building on NSF-funded research to create UAVs and robotic systems to inspect steel and concrete bridges. His goal is to develop an efficient, low-cost and safe tool for inspecting bridges. Credit: University of Nevada, Reno

Quadcopter Reviews & The Best Drones For Sale of 2016

 Updated: September 16, 2016

The best drones to buy for September 2016 are…

This September, there are a lot of awesome drones for sale. With so many options out there on the market it can sometimes be tough to make a decision. Leave it to us to give you a lay of the land and help you find the drone or quadcopter that is right for you. The article below will describe the best options to help find a drone that fits your budget and meets your needs.

 

Rank Drone Camera Quality Flight Time Skill Level Estimated Price
#1 DJI Phantom 4 4K 28 min Beginner/Intermediate/Advanced $1,100
#2 DJI Phantom 3 Professional  4K 24 min Intermediate $812
 #3
Yuneec Q500 Typhoon
1080P 25 min Intermediate $599
#4
3DR Solo
GoPro (Not Included) 25 min Intermediate $599
#5
DJI Inspire
4K 20 min Advanced $1,999
#6 DJI Phantom vision 14 MP/1080p 20 min Intermediate $399
#7 Parrot Bepop 14 MP/ 1080P 20 min Beginner $252
#8 Parrot AR 2.0 720p/30fps 10-12 min Intermediate $249
 #9 UDI 818 640×480 pixels 7-9 min Beginner $41
#10Hubasan x4 l None 8-10 min Beginner $38
#11 Hubasan x4 L .3MP 7 min Beginner 40
 #12 Hubasan x4

.3MP 7-8 min Beginner $99
#13 Estes proto x None 5 min Beginner $29
 #14 Parrot jumping sumo 640×480 pixels 20 min Beginner $99
#15 Parrot rolling spider Vertical Mini 10-15 min Beginner $95
 #16 Heli-Max 1SQ None 8-9 min Beginner $101
#17 Sky Viper Stunt GoPro Mount 4-5 min Beginner $65

Best drone for your dollar: DJI Phantom 3

 

   Flight Time 25 min
   Camera 2.7K Video / 12 MP Camera
   Communication Distance 1000m
   Max Flight Speed 15 m/s
   Skill Level Beginner
   Battery Type 4S 4480mAh Li-Po
   Price $999 

 

The third descendent of the Phantom line, the DJI Phantom 3 showcases the culmination of DJI’s hard work over the past decade. DJI has learned a lot in the past few generations of Phantom, and it all comes together here with the Phantom 3. For the quality and the money, there isn’t a better choice for your dollar than the Phantom 3 Standard. The camera, the flight time, the bug-free user experience… everything in this drone’s suite of features will please 99.9% of users.

This is a great beginner quadcopter. With incredibly smooth controls and a very simple setup, you can focus on the important things like flying and framing your shots. Whether you want to steadily hover in place for a still shot/video or effortlessly frame your desired video, the Phantom 3 is the quadcopter for you.